| Abstract: | Analysis of temporal trends in tetrachloroethylene (PCE) concentration determined by two sample techniques showed that passive diffusion bag (pdb) samplers adequately sample the large variation in PCE concentrations at the site. The slopes of the temporal trends in concentrations were comparable between the two techniques, and the pdb sample concentration generally reflected the instantaneous concentration sampled by the low-flow technique. Thus, the pdb samplers provided an appropriate sampling technique for PCE at these wells. One or two wells did not make the case for widespread application of pdb samples at all sites. However, application of pdb samples in some circumstances was appropriate for evaluating temporal and spatial variations in VOC concentrations, thus, should be considered as a useful tool in hydrogeology. |
| Genre: | Article |
| ProdID: | 70024797 |
| Citation Author: | Harte, P. T. |
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| Citation End Page: | 47 |
| Citation Issue: | 2 |
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| Citation Language: | English |
| Citation Larger Work Title: | Ground Water Monitoring and Remediation |
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| Citation Number Of Pages: | 3 |
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| Citation Search Results Text: | Comparison of temporal trends in VOCs as measured with PDB samplers and low-flow sampling methods; 2002; Article; Journal; Ground Water Monitoring and Remediation; Harte, P. T. |
| Citation Start Page: | 45 |
| Citation Volume: | 22 |
| Citation Year: | 2002 |
| Type: | citation/reference |
| Text: | Comparison of temporal trends in VOCs as measured with PDB samplers and low-flow sampling methods; 2002; Article; Journal; Ground Water Monitoring and Remediation; Harte, P. T. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Tue, 1 Jan 2002 00:00 -0600 |
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